Package: btrfs-progs Version: 4.5.2-1 Tags: patch Control: severity -1 severe
Because btrfs-convert is known to fail, and is known to causes data-loss that may take some months to manifest, we must provide a warning, because data-loss is serious. This patch also includes a contrib initramfs hook which is installed to /usr/share/doc/btrfs-progs; it must be manually copied into place; I've included it because this is the first place a sophisticated user would look. Signed-off-by: Nicholas D Steeves <nstee...@gmail.com>
diff -ur --new-file btrfs-progs-4.5.2/debian/local/btrfs-convert.hook btrfs-progs-4.5.2.changed/debian/local/btrfs-convert.hook --- btrfs-progs-4.5.2/debian/local/btrfs-convert.hook 1969-12-31 19:00:00.000000000 -0500 +++ btrfs-progs-4.5.2.changed/debian/local/btrfs-convert.hook 2016-05-20 17:00:42.460132609 -0400 @@ -0,0 +1,8 @@ +#!/bin/sh + +. /usr/share/initramfs-tools/hook-functions + +if command -v /bin/btrfs-convert >/dev/null 2>&1; then + copy_exec /bin/btrfs-convert bin/btrfs-convert + copy_exec /bin/btrfs-convert.real bin/btrfs-convert.real +fi diff -ur --new-file btrfs-progs-4.5.2/debian/local/btrfs-convert.wrapper btrfs-progs-4.5.2.changed/debian/local/btrfs-convert.wrapper --- btrfs-progs-4.5.2/debian/local/btrfs-convert.wrapper 1969-12-31 19:00:00.000000000 -0500 +++ btrfs-progs-4.5.2.changed/debian/local/btrfs-convert.wrapper 2016-05-20 17:01:01.084103049 -0400 @@ -0,0 +1,35 @@ +#!/bin/sh + +cat << !EOF! +******** WARNING ******** +Btrfs-convert is known to fail. An upstream rewrite of the +utility is currently in progress. At this point in time, +btrfs-convert is provided for experimental purposes only. + +Please do not convert filesystems filled with data you value. +Expect that you will need to restore from backup. Beware, +the dataloss may not be immediately apparent, and may take +some time to manifest. + +If you choose to experiment with btrfs-convert, please do so +with the willingness to work with linux-bt...@vger.kernel.org + +!EOF! +echo -n 'Proceed (Yes/No)?: ' + +while true; do + read -r choice + case "$choice" in + Yes ) + exec /bin/btrfs-convert.real "$@" + exit $? + ;; + no | n | No | NO ) + echo "Thank you for making the safe choice" + exit 0 + ;; + * ) + echo -n "Please answer Yes or No: " + ;; + esac +done diff -ur --new-file btrfs-progs-4.5.2/debian/rules btrfs-progs-4.5.2.changed/debian/rules --- btrfs-progs-4.5.2/debian/rules 2016-05-10 05:15:55.000000000 -0400 +++ btrfs-progs-4.5.2.changed/debian/rules 2016-05-20 16:59:16.708269112 -0400 @@ -27,6 +27,12 @@ # Adding initramfs-tools integration install -D -m 0755 debian/local/btrfs.hook debian/btrfs-progs/usr/share/initramfs-tools/hooks/btrfs install -D -m 0755 debian/local/btrfs.local-premount debian/btrfs-progs/usr/share/initramfs-tools/scripts/local-premount/btrfs + install -D -m 0755 debian/local/btrfs-convert.hook debian/btrfs-progs/usr/share/doc/btrfs-convert.hook + +# divert btrfs-convert to btrfs-convert.real +# and use a wrapper script to notify it is dangerous + mv debian/btrfs-progs/bin/btrfs-convert debian/btrfs-progs/bin/btrfs-convert.real + install -D -m 0755 debian/local/btrfs-convert.wrapper debian/btrfs-progs/bin/btrfs-convert # Needs autopkgtest override_dh_auto_test:
